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采用正交旋转组合设计试验研究了节水麦田氮、五氧化二磷、氧化钾与小麦产量、经济效益及成本的关系。结果表明,增施氮磷肥是实现小麦高产高效优化栽培的关键,合理配比施肥量为每667平方米施纯氮17.29～21.25千克,五氧化二磷8.10～10.30千克,氧化钾4.77～8.68千克,并明确了不同条件下的施肥技术。
Orthogonal rotation combined design experiment was conducted to study the relationship between nitrogen, phosphorus pentoxide, potassium oxide and wheat yield, economic benefits and cost in water-saving wheat fields. The results showed that adding N and P fertilizers was the key to high-yield and high-efficiency wheat cultivation. Fertilization ration was 17.29-21.25 kg of pure nitrogen per 667 m2, 8.10-10.30 kg of P2O5 and 4.77-8.68 kg of potassium oxide , And defined the fertilization technology under different conditions.